Stewart Grierson has served as one of our directors since June 2012. From October 2004 to June 2011, Mr. Grierson served as Chief Financial Officer of ArcSight Inc., an enterprise security and software compliance management company, and also served as Vice President of Finance from March 2003 to April 2007 and Secretary from January 2003 to January 2006. From November 1999 to July 2002, Mr. Grierson served in several positions for ONI Systems Corp., a provider of optical communications equipment, including most recently as Vice President and Corporate Controller. From 1992 to 1999, he served in various roles in the audit practice at KPMG LLP. Mr. Grierson holds a BA in economics and a Graduate Diploma in Chartered Accountancy, both from McGill University. Mr. Grierson is also a chartered accountant. Mr. Grierson was selected to serve on our board based on his extensive experience with technology and communications companies and his financial and accounting background. Mr. Grierson qualifies as an “audit committee financial expert” within the meaning of the SEC regulations.